Onlyoffice cannot open doc .xls or .doc, timout / GetConvertedUri 558 bad request

Hi all

We have 2 box, first for nextcloud, second for Onlyoffice document Server, with 8g ram for etch, and ssl on both with a valid commercial ssl cert
The 2 box are on the same subnet, no iptable or apparmor installed

With the nexcloud web gui we can create or edit xlsx or docx without any problem.

The problem is with doc and xls files, when we try to open it, we have a message document will be converted etc…
But the doc never open…

In the log file we have

file_get_contents( failed to open stream: Connection timed out at /var/www/nextcloud/apps/onlyoffice/lib/documentservice.php#351


GetConvertedUri: 558 Bad Request or timeout error

If anybody have an idea or a good pointer to a solution, it will be great…


Please try a solution described here.
If it doesn’t help, let us know.